As mighty as the Emperor and his fleet is, he would do well not to offend Morgoth. And Morgoth would be right to crush him. We don't want any George Lucas creations in Middle-Earth!"Radagast is, of course, a worthy wizard, a master of shapes and changes of hue, and he has much lore of herbs and beasts, and birds are especially his friends."-Gandalf, The Lord of the Rings.

As mighty as the Emperor and his fleet is, he would do well not to offend Morgoth. And Morgoth would be right to crush him. We don't want any George Lucas creations in Middle-Earth!

The Imperial Armada, in orbit above Middle-earth.

PALPATINE: Admiral, target the area known as Thangorodrim!

FLEET ADMIRAL: Yes, sir!

PALPATINE: Have your ships turn it into glass. "Good and ill have not changed since yesteryear; nor are they one thing among Elves and Dwarves and another among Men. It is a man's part to discern them, as much in the Golden Wood as in his own house." - Aragorn

We know Morgoth attacked Tilion, a.k.a. the Moon, in his orbit by sending "spirits of shadow" against him (Silmarillion, Of the Sun and Moon). Tilion fended them off, though. So Morgoth did have at least limited capacities for an orbital strike, though not very formidable ones if a single Maia gave them the boot. I doubt these spirits wold have been terribly effective against interstellar battlecruisers.

So a win for the Empire, but they would have at least to do some work up there before being able to melt Thangorodrim with da laz0rs.